Milwaukee's Threaded Steel Hawg® cutters range from 3/4" to 6" and drill up to 2" hole depth in steel. These cutters drill up to 3 times faster than twist drill bits due to the carbide teeth and alternating cutting pattern. Steel Hawg(r) cutters can be used with most electromagnetic drill presses and can drill into: steel, stainless steel, cast iron, or aluminum. Use arbor 49-57-0030 for use with Milwaukee's 4262-1 mag press, or arbor 49-57-0010 for use with Milwaukee's 4292-1 mag press.